| Value | Category | Cases | |
|---|---|---|---|
| 0 | doesn't smoke | 156 |
93.4%
|
| 2 | 1 |
0.6%
|
|
| 4 | 1 |
0.6%
|
|
| 10 | 1 |
0.6%
|
|
| 20 | 1 |
0.6%
|
|
| 80 | 80+ | 0 |
0%
|
| 94 | smokes pipes, cigars, etc. | 0 |
0%
|
| 99 | 7 |
4.2%
|
|
| Sysmiss | 742 |